HIGH ACCURACY SURFACE MOUNT CRYSTALS
FEATURES
TIGHT TOLERANCE AND STABILITY OVER TEMPERATURE
WIDE FREQUENCY RANGE
EXCELLENT FREQUENCY SOURCE FOR TELECOM APPLICATIONS
SPECIFICATIONS
FREQUENCY RANGE
HOLDER TYPES
FREQUENCY TOLERANCE AT 25° C
FREQUENCY STABILITY OVER TEMPERATURE RANGE
OPERATING TEMPERATURE RANGE
LOAD CAPACITANCE
AGING PER YEAR
MODE OF OSCILLATION
EQUIVALENT SERIES RESISTANCE (ESR)
DRIVE LEVEL
A-SMD: HC-49/U-SMD
C-SMD: UM-1 SMD
1.00 MHz TO 360.00 MHz
1.00 MHz TO 360.00 MHz
10.00 MHz TO 300.00 MHz
±5 PPM TO ±25 PPM
±3 PPM (-10°C TO +60°C) TO
±50 PPM (-55°C TO +125°C)
-55°C TO +125°C MAXIMUM
10 pF TO 50 pF OR SERIES
±3 PPM MAXIMUM
FUNDAMENTAL TO NINTH OVERTONE
SEE PAGE 3
0.1
mW
TYPICAL
OUTLINE DRAWINGS
A-SMD TYPE: HC-49/U-SMD
Scale none Dimension in
mm
inch
3.0
.118
C-SMD TYPE: UM-1-SMD
3.56
3.18
.125
3.0
.118
.140
2.8
.110
8.1 MAX
.319 MAX
1.80 .071
13.5 MAX
.530 MAX
13.34
.525
3.18
.125
4.88 ± .127
.192 ± .005
3.60
.142
3.75
.148
4.65 MAX
.183 MAX
5.3 MAX
.208 MAX
3.3 MAX
.130 MAX
.10 ± .020
2.5 ± 0.5
.431
.017
1.80
.071
3.20
.126
1.27
0.50
1.27
.050
2.48
.098
2.97 ± .30
.117 ± .012
11.05 MAX
.435 MAX
1.91 ± .63
.075 ± .025
1.40 ± .25
.055 ± .01
19.40 MAX
.764 MAX
1.57 ± .30
.062 ± .012
3.75
.148
1.45 ± 0.15
.057 ± .006
12.7 MAX
.500 MAX
PART NUMBERING SYSTEM
HOLDER TYPE
-
IN MHz
FREQUENCY
-
LOAD CAPACITANCE
-
F
3OT
5OT
7OT
9OT
MODE
FUNDAMENTAL
THIRD OVERTONE
FIFTH OVERTONE
SEVENTH OVERTONE
NINTH OVERTONE
-
EXT
SMD
EXTENDED
TEMPERATURE
SURFACE
MOUNT
A
C
HC-49/U-SMD
UM-1-SMD
10 TO 32pF FOR PARALLEL
S FOR SERIES
EXAMPLE: A-32.000-20-3OT-SMD
C-100.00-S-5OT-SMD
Raltron Electronics Corporation 10651 NW 19th St. Miami, Florida 33172 U.S.A.
Tel: 305-593-6033 Fax: 305-594-3973 e-mail: sales@raltron.com Internet: http://www.raltron.com
4.8 MAX
.189 MAX
1.3 ± 0.2
.051 ± .008
9.20
.362
PCB设计
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